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How to Resolve ORA-45909: restore, recover or block media recovery may be in progress

by Ed Chen
June 15, 2023June 24, 2023

ORA-45909 Tried to restore a data file by RMAN, it failed with ORA-45909, ORA-19890 and ORA-19573. RMAN> restore datafile 13; ... ORA-19870: error while restoring… Read More »

How to Start Oracle Database

by Ed Chen
September 28, 2019January 5, 2023

Start Oracle Database To start an Oracle database, you have to know which database you want to start. This includes at least two things, Oracle… Read More »

How to Resolve ORA-19573: cannot obtain exclusive enqueue for datafile 1

by Ed Chen
November 1, 2015December 23, 2022
6 Comments

ORA-19573 It's pretty easy to reproduce ORA-19573 because the solution is pretty easy, too. In this post, I will show you two run blocks on… Read More »

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